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https://www.readbyqxmd.com/read/29035985/qt-corrections-for-long-qt-risk-assessment-implications-for-the-preparticipation-examination
#1
David Hadley, David Hsu, David Pickham, Jonathan A Drezner, Victor F Froelicher
BACKGROUND: Because sudden cardiac death (SCD) in the young mainly occur in individuals with structurally normal hearts, improved screening techniques for detecting inherited arrhythmic diseases are needed. The QT interval is an important screening measurement; however, the criteria for detecting an abnormal QT interval are based on Bazett formula and older populations. OBJECTIVE: To define the normal upper limits for QT interval from the electrocardiograms (ECGs) of healthy young individuals, compare the major correction formula and propose new QT interval thresholds for detecting those at risk of SCD...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035984/risk-factors-for-lower-extremity-injuries-among-contemporary-dance-students
#2
Christine van Seters, Rogier M van Rijn, Marienke van Middelkoop, Janine H Stubbe
OBJECTIVE: To determine whether student characteristics, lower-extremity kinematics, and strength are risk factors for sustaining lower-extremity injuries in preprofessional contemporary dancers. DESIGN: Prospective cohort study. SETTING: Codarts University of the Arts. PATIENTS: Forty-five first-year students of Bachelor Dance and Bachelor Dance Teacher. ASSESSMENT OF RISK FACTORS: At the beginning of the academic year, the injury history (only lower-extremity) and student characteristics (age, sex, educational program) were assessed using a questionnaire...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035982/comparison-of-the-effect-of-5-different-treatment-options-for-managing-patellar-tendinopathy-a-secondary-analysis
#3
Dafne van Rijn, Inge van den Akker-Scheek, Mirjam Steunebrink, Ron L Diercks, Johannes Zwerver, Henk van der Worp
OBJECTIVE: Currently, no treatments exist for patellar tendinopathy (PT) that guarantee quick and full recovery. Our objective was to assess which treatment option provides the best chance of clinical improvement and to assess the influence of patient and injury characteristics on the clinical effect of these treatments. DESIGN: A secondary analysis was performed on the combined databases of 3 previously performed double-blind randomized controlled trials. PATIENTS: In total, 138 patients with PT were included in the analysis...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035980/incidence-of-symptomatic-pulmonary-embolus-and-deep-vein-thrombosis-after-knee-arthroscopy-in-the-pediatric-and-adolescent-population
#4
Brian C Lau, Jason Jagodzinski, Nirav K Pandya
OBJECTIVE: The incidence of deep venous thrombosis (DVT) and pulmonary embolism (PE) after pediatric knee arthroscopy is unknown. The purpose of this study was to determine the incidence of venous thromboembolism (VTE) after knee arthroscopy in the pediatric and adolescent population in a high-volume center. DESIGN: Retrospective cohort study. SETTING: Tertiary care children's hospital. PATIENTS: All patients who underwent arthroscopy of the knee for a sports-related injury by 2 surgeons were reviewed...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035978/use-of-blood-biomarkers-in-the-assessment-of-sports-related-concussion-a-systematic-review-in-the-context-of-their-biological-significance
#5
Brendan OʼConnell, Áine M Kelly, David Mockler, Matej Orešič, Karl Denvir, Garreth Farrell, Damir Janigro, Fiona Wilson
OBJECTIVES: To critically review current knowledge on the positive and negative predictive value of blood biomarkers for concussion; to illustrate the clinical and biological contexts that help evaluate the use of these markers in sport-related traumatic brain injuries (TBIs). METHODS: This systematic review was performed in accordance with PRISMA guidelines. We reviewed the measurement, clinical utility, endpoint, and biological significance of blood biomarkers in concussion...
October 12, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035588/external-match-loads-of-footballers-with-cerebral-palsy-a-comparison-among-sport-classes
#6
Javier Yanci, Daniel Castillo, Aitor Iturricastillo, Tomás Urbán, Raúl Reina
PURPOSE: The aim of this study was to determine and to compare the external match load (ML), according to sport class (FT) of footballers with cerebral palsy (CP) during the International Federation of CP Football (IFCPF) World Championships Qualification Tournament. METHODS: Forty-two international male footballers with CP participated in the data collection. The footballers with CP were classified according to their FT in three groups (i.e. FT5/6, FT7, and FT8)...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035582/video-feedback-and-2-dimensional-landing-kinematics-in-elite-female-handball-players
#7
Anne Benjaminse, Wytze Postma, Ina Janssen, Egbert Otten
CONTEXT: In team handball, an anterior cruciate ligament injury often occurs during landing after a jump shot. Many intervention programs try to reduce the injury rate by instructing athletes to land more safely. Video is an effective way to provide feedback, but little is known about its influence on landing technique in sport-specific situations. OBJECTIVE: To test the effectiveness of a video-overlay feedback method on landing technique in elite handball players...
October 16, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29035404/-biological-significance-of-chromium-iii-for-the-human-organism
#8
REVIEW
Anna Piotrowska, Wanda Pilch, Łukasz Tota, Gabriel Nowak
Currently, chromium is probably the most controversial transition metal. In recent publications it is clearly stated that it is not an essential micronutrient and should be considered to have a pharmacological effect. Conflicting scientific reports along with a huge amount of dietary supplements, as well as dietary and sports nutrients available on the market have prompted the authors to investigate the available information on the range of possible application, efficacy and safety of products containing salts or chelates of chromium III...
October 12, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/29034800/hip-and-knee-strengthening-is-more-effective-than-knee-strengthening-alone-for-reducing-pain-and-improving-activity-in-individuals-with-patellofemoral-pain-a-systematic-review-with-meta-analysis
#9
Lucas R Nascimento, Luci F Teixeira-Salmela, Ricardo B Souza, Renan A Resende
Study Design Systematic review with meta-analysis. Background The addition of hip strengthening to knee strengthening for persons with patellofemoral pain has the potential to optimize treatment effects. There is a need to systematically review and pool the current evidence in this area. Objective To examine the efficacy of hip strengthening, associated or not with knee strengthening, to increase strength, reduce pain, and improve activity in individuals with patellofemoral pain. Methods A systematic review of randomized or controlled trials was performed...
October 15, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29034799/measurement-properties-of-a-test-battery-to-assess-postural-orientation-during-functional-tasks-in-patients-undergoing-acl-injury-rehabilitation
#10
Jenny Nae, Mark W Creaby, Gustav Nilsson, Kay M Crossley, Eva Ageberg
Study Design Cross-sectional study. Background Visual rating of postural orientation (PO) during functional tasks may be a valuable tool to track rehabilitation progress following anterior cruciate ligament (ACL) injury. A valid test battery assessing PO as a separate construct is lacking. Objectives To evaluate measurement properties of a test battery to assess PO in patients with ACL injury. Methods Content validity of functional tasks was assessed by expert focus group discussions. 51 patients (45% women) with ACL injury performed nine functional tasks of varying difficulty...
October 15, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29033146/the-prevalence-and-performance-of-resistance-exercise-training-activities-in-an-australian-population-in-relation-to-health-authority-guidelines
#11
Brendan Humphries, Rob Stanton, Aaron Scanlan, Mitch J Duncan
OBJECTIVES: Resistance training research highlights the importance of training intensity to resistance exercise training (RET) and the associated benefits to health and function for healthy and at-risk populations. The American College of Sports Medicine (ACSM) recommend specific intensities, frequencies, repetitions, and number of exercises of RET to be performed to maintain health. The primary aim of this study was to describe the prevalence of achieving recommended levels of RET in relation to ACSM guidelines for intensity, frequency, repetitions, and number of exercises in a regional Australian population...
September 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29032484/young-athletes-return-too-early-to-knee-strenuous-sport-without-acceptable-knee-function-after-anterior-cruciate-ligament-reconstruction
#12
Susanne Beischer, Eric Hamrin Senorski, Christoffer Thomeé, Kristian Samuelsson, Roland Thomeé
PURPOSE: The purpose of this study was to evaluate the return to knee-strenuous sport rate, muscle function and subjective knee function among adolescent patients (15-20 years of age) and adult patients (21-30 years of age) 8 and 12 months, respectively, after anterior cruciate ligament (ACL) reconstruction. It was hypothesised that no differences in outcome would be found between age groups at 8 or 12 months after ACL reconstruction. METHODS: Cross-sectional data from five tests of muscle function, from the Knee injury and Osteoarthritis Outcome Score (KOOS) and the Tegner Activity Scale (Tegner), performed at 8 and 12 months after a primary ACL reconstruction, were extracted from a rehabilitation outcome register...
October 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29031507/-sport-coaching-for-psychological-and-social-recovery-after-hematological-cancer-an-innovative-perspective
#13
Sarah Calvin, Didier Blaise, Patrick Ben Soussan, Sarah Cuvelier, Nicolas Cicut, Laurence Caymaris, Yolande Arnault, Claude Onesta, Pierre Dantin, Patrice Viens
This study is a first step towards the transfer of knowledge and practices between psychological support and performance in elite sport and a patient's "social recovery" in oncology. This proposal brings together people engaged in a variety of healthcare and relationship support roles, and aims to set up a support system beyond the hospital context. It questions the ability of elite sport management and its main actors, the "Great Coaches", to contribute to the support of patients in cancer remission through an onco-coaching approach...
October 11, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/29031474/sport-time-pressure-and-cognitive-performance
#14
Chia N Chiu, Chiao-Yun Chen, Neil G Muggleton
Sport participation, fitness, and expertise have been associated with a range of cognitive benefits in a range of populations but both the factors that confer such benefits and the nature of the resulting changes are relatively unclear. Additionally, the interactions between time pressure and cognitive performance for these groups is little studied. Using a flanker task, which measures the ability to selectively process information, and with different time limits for responding, we investigated the differences in performance for participants in (1) an unpredictable, open-skill sport (volleyball), (2) an exercise group engaged in predictable, closed-skill sports (running, swimming), and (3) nonsporting controls...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031472/catching-on-it-early-bodily-and-brain-anticipatory-mechanisms-for-excellence-in-sport
#15
Ana M Abreu, Matteo Candidi, Salvatore M Aglioti
Programming and executing a subsequent move is inherently linked to the ability to anticipate the actions of others when interacting. Such fundamental social ability is particularly important in sport. Here, we discuss the possible mechanisms behind the highly sophisticated anticipation skills that characterize experts. We contend that prediction in sports might rely on a finely tuned perceptual system that endows experts with a fast, partially unconscious, pickup of relevant cues. Furthermore, we discuss the role of the multimodal, perceptuomotor, multiple-duty cells (mirror neurons) that play an important function in action anticipation by means of an inner motor simulation process...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031471/gunslingers-poker-players-and-chickens-3-decision-making-under-mental-performance-pressure-in-junior-elite-athletes
#16
Beth L Parkin, Vincent Walsh
BACKGROUND: Having investigated the decision making of world class elite and subelite athletes (see Parkin and Walsh, 2017; Parkin et al., 2017), here the abilities of those at the earliest stage of entry to elite sport are examined. Junior elite athletes have undergone initial national selection and are younger than athletes examined previously (mean age 13 years). Decision making under mental pressure is explored in this sample. During performance an athlete encounters a wide array of mental pressures; these include the psychological impact of errors, negative feedback, and requirements for sustained attention in a dynamic environment (Anshel and Wells, 2000; Mellalieu et al...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031470/the-resonant-system-linking-brain-body-environment-in-sport-performance-%C3%A2
#17
Pedro Teques, Duarte Araújo, Ludovic Seifert, Vicente L Del Campo, Keith Davids
The ecological dynamics approach offers new insights to understand how athlete nervous systems are embedded within the body-environment system in sport. Cognitive neuroscience focuses on the neural bases of athlete behaviors in terms of perceptual, cognitive, and motor functions defined within specific brain structures. Here, we discuss some limitations of this traditional perspective, addressing how athletes functionally adapt perception and action to the dynamics of complex performance environments by continuously perceiving information to regulate goal-directed actions...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031469/gunslingers-poker-players-and-chickens-2-decision-making-under-physical-performance-pressure-in-subelite-athletes
#18
Beth L Parkin, Vincent Walsh
BACKGROUND: Having investigated the influence of acute physical exhaustion on decision-making in world-class elite athletes in Parkin et al. (2017), here a similar method is applied to subelite athletes. These subelite athletes were enrolled on a Team GB talent development program and were undergoing training for possible Olympic competition in 4-8 years. They differ from elite athletes examined previously according to expertise and age. While considered elite (Swann et al., 2015), the subelite athletes had approximately 8 years fewer sporting experience and were yet to obtain sustained success on the international stage...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031468/gunslingers-poker-players-and-chickens-1-decision-making-under-physical-performance-pressure-in-elite-athletes
#19
Beth L Parkin, Katie Warriner, Vincent Walsh
BACKGROUND: The cognitive skills required during sport are highly demanding; accurate decisions based on the processing of dynamic environments are made in a fraction of a second (Walsh, 2014). Optimal decision-making abilities are crucial for success in sporting competition (Bar-Eli et al., 2011; Kaya, 2014). Moreover, for the elite athlete, decision making is required under conditions of intense mental and physical pressure (Anshel and Wells, 2000), yet much of the work in this area has largely ignored the highly stressful context in which athletes operate...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031465/neurocognitive-mechanisms-of-the-flow-state
#20
David J Harris, Samuel J Vine, Mark R Wilson
While the experience of flow is often described in attentional terms-focused concentration or task absorption-specific cognitive mechanisms have received limited interest. We propose that an attentional explanation provides the best way to advance theoretical models and produce practical applications, as well as providing potential solutions to core issues such as how an objectively difficult task can be subjectively effortless. Recent research has begun to utilize brain-imaging techniques to investigate neurocognitive changes during flow, which enables attentional mechanisms to be understood in greater detail...
2017: Progress in Brain Research
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